right to defend itself. >> reporter: days after winning re-election, the president is faced with a widening conflict that has potential to destabilize an already unstable region. of course in the united states and here in the region, everyone is hoping this is over quickly. no one can afford a wider war. >> thank you, for that. >> the israeli military, media office, twitter account, gained 50,000 followers in the past 24 hours. hamas has a facebook page and all playing out on line and on the ground. >> hamas threatening israel saying they have opened the gates of hell by assassinating one of their top leaders. >> we will be back with more right after this. stay with us, everybody. >>> as we all know we are becoming a digital nation. it all begins with books. for too many children, books just aren't a big part of their lives. >> one group set out to remedy that. yesterday it reached a milestone. bringing smiles to 100 million boys and girls. abc's terry moran has the story. >> reporter: you remember, your first book. a moment filled with bright dreams and possibilities. and in washington, d.